Permalloy nanowires/graphene oxide composite with enhanced conductive properties

Abstract Carbon–metal-based composites arise as advanced materials in the frontiers with nanotechnology, since the properties inherent to each component are multiplexed into a new material with potential applications. In this work, a novel composite consisting of randomly oriented permalloy nanowire...

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Autores principales:	Diana M. Arciniegas Jaimes, Paulina Márquez, Alexandra Ovalle, Juan Escrig, Omar Linarez Pérez, Noelia Bajales
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c89a237c7367426fadbbfdff88bf907c
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spelling	oai:doaj.org-article:c89a237c7367426fadbbfdff88bf907c2021-12-02T19:06:33ZPermalloy nanowires/graphene oxide composite with enhanced conductive properties10.1038/s41598-020-70512-12045-2322https://doaj.org/article/c89a237c7367426fadbbfdff88bf907c2020-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-70512-1https://doaj.org/toc/2045-2322Abstract Carbon–metal-based composites arise as advanced materials in the frontiers with nanotechnology, since the properties inherent to each component are multiplexed into a new material with potential applications. In this work, a novel composite consisting of randomly oriented permalloy nanowires (Py NWs) intercalated among the sheets of multi-layered graphene oxide (GO) was performed. Py NWs were synthesized by electrodeposition inside mesoporous alumina templates, while GO sheets were separated by means of sonication. Sequential deposition steps of Py NWs and GO flakes allowed to reach a reproducible and stable graphene oxide-based magnetic assembly. Microscopic and spectroscopic results indicate that Py NWs are anchored on the surface as well as around the edges of the multi-layered GO, promoted by the presence of chemical groups, while magnetic characterization affords additional support to our hypothesis regarding the parallel orientation of the Py NWs with respect to the GO film, and also hints the parallel stacking of GO sheets with respect to the substrate. The most striking result remains on the electrochemical performance achieved by the composite that evidences an enhanced conductive behaviour compared to a standard electrode. Such effect provides an approach to the development of permalloy nanowires/graphene oxide-based electrodes as attractive candidates for molecular sensing devices.Diana M. Arciniegas JaimesPaulina MárquezAlexandra OvalleJuan EscrigOmar Linarez PérezNoelia BajalesNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Diana M. Arciniegas Jaimes Paulina Márquez Alexandra Ovalle Juan Escrig Omar Linarez Pérez Noelia Bajales Permalloy nanowires/graphene oxide composite with enhanced conductive properties
description	Abstract Carbon–metal-based composites arise as advanced materials in the frontiers with nanotechnology, since the properties inherent to each component are multiplexed into a new material with potential applications. In this work, a novel composite consisting of randomly oriented permalloy nanowires (Py NWs) intercalated among the sheets of multi-layered graphene oxide (GO) was performed. Py NWs were synthesized by electrodeposition inside mesoporous alumina templates, while GO sheets were separated by means of sonication. Sequential deposition steps of Py NWs and GO flakes allowed to reach a reproducible and stable graphene oxide-based magnetic assembly. Microscopic and spectroscopic results indicate that Py NWs are anchored on the surface as well as around the edges of the multi-layered GO, promoted by the presence of chemical groups, while magnetic characterization affords additional support to our hypothesis regarding the parallel orientation of the Py NWs with respect to the GO film, and also hints the parallel stacking of GO sheets with respect to the substrate. The most striking result remains on the electrochemical performance achieved by the composite that evidences an enhanced conductive behaviour compared to a standard electrode. Such effect provides an approach to the development of permalloy nanowires/graphene oxide-based electrodes as attractive candidates for molecular sensing devices.
format	article
author	Diana M. Arciniegas Jaimes Paulina Márquez Alexandra Ovalle Juan Escrig Omar Linarez Pérez Noelia Bajales
author_facet	Diana M. Arciniegas Jaimes Paulina Márquez Alexandra Ovalle Juan Escrig Omar Linarez Pérez Noelia Bajales
author_sort	Diana M. Arciniegas Jaimes
title	Permalloy nanowires/graphene oxide composite with enhanced conductive properties
title_short	Permalloy nanowires/graphene oxide composite with enhanced conductive properties
title_full	Permalloy nanowires/graphene oxide composite with enhanced conductive properties
title_fullStr	Permalloy nanowires/graphene oxide composite with enhanced conductive properties
title_full_unstemmed	Permalloy nanowires/graphene oxide composite with enhanced conductive properties
title_sort	permalloy nanowires/graphene oxide composite with enhanced conductive properties
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/c89a237c7367426fadbbfdff88bf907c
work_keys_str_mv	AT dianamarciniegasjaimes permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties AT paulinamarquez permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties AT alexandraovalle permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties AT juanescrig permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties AT omarlinarezperez permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties AT noeliabajales permalloynanowiresgrapheneoxidecompositewithenhancedconductiveproperties
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Permalloy nanowires/graphene oxide composite with enhanced conductive properties

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